/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.launcherEx;

//import com.android.common.Search;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.SearchManager;
import android.app.StatusBarManager;
import android.app.WallpaperManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.Intent.ShortcutIconResource;
import android.content.IntentFilter;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.database.ContentObserver;
import android.graphics.Bitmap;
import android.graphics.Rect;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.ColorDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Parcelable;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.provider.LiveFolders;
import android.text.Selection;
import android.text.SpannableStringBuilder;
import android.text.TextUtils;
import android.text.method.TextKeyListener;
import android.util.Log;
import android.view.Display;
import android.view.HapticFeedbackConstants;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnLongClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ImageView;
import android.widget.PopupWindow;
import android.widget.LinearLayout;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;

import java.util.ArrayList;
import java.util.List;
import java.util.HashMap;
import java.io.DataOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.DataInputStream;

import com.android.launcherEx.DockBar;
import com.android.launcherEx.R;
import com.android.launcherEx.ShortcutInfo;

/**
 * Default launcher application.
 */
public final class Launcher extends Activity implements View.OnClickListener,
	OnLongClickListener, LauncherModel.Callbacks, AllAppsView.Watcher {
    static final String TAG = "Launcher";
    static final boolean LOGD = false;

    static final boolean PROFILE_STARTUP = false;
    static final boolean DEBUG_WIDGETS = false;
    static final boolean DEBUG_USER_INTERFACE = false;

    private static final int WALLPAPER_SCREENS_SPAN = 2;

    private static final int MENU_GROUP_ADD = 1;
    private static final int MENU_GROUP_WALLPAPER = MENU_GROUP_ADD + 1;

    private static final int MENU_ADD = Menu.FIRST + 1;
    private static final int MENU_WALLPAPER_SETTINGS = MENU_ADD + 1;
    private static final int MENU_SEARCH = MENU_WALLPAPER_SETTINGS + 1;
    private static final int MENU_NOTIFICATIONS = MENU_SEARCH + 1;
    private static final int MENU_SETTINGS = MENU_NOTIFICATIONS + 1;

    private static final int REQUEST_CREATE_SHORTCUT = 1;
    private static final int REQUEST_CREATE_LIVE_FOLDER = 4;
    private static final int REQUEST_CREATE_APPWIDGET = 5;
    private static final int REQUEST_PICK_APPLICATION = 6;
    private static final int REQUEST_PICK_SHORTCUT = 7;
    private static final int REQUEST_PICK_LIVE_FOLDER = 8;
    private static final int REQUEST_PICK_APPWIDGET = 9;
    private static final int REQUEST_PICK_WALLPAPER = 10;

    static final String EXTRA_SHORTCUT_DUPLICATE = "duplicate";

    static final int SCREEN_COUNT = 5;
    static final int DEFAULT_SCREEN = 2;
    static final int NUMBER_CELLS_X = 4;
    static final int NUMBER_CELLS_Y = 4;

    static final int DIALOG_CREATE_SHORTCUT = 1;
    static final int DIALOG_RENAME_FOLDER = 2;

    private static final String PREFERENCES = "launcher.preferences";

    // Type: int
    private static final String RUNTIME_STATE_CURRENT_SCREEN = "launcher.current_screen";
    // Type: boolean
    private static final String RUNTIME_STATE_ALL_APPS_FOLDER = "launcher.all_apps_folder";
    // Type: long
    private static final String RUNTIME_STATE_USER_FOLDERS = "launcher.user_folder";
    // Type: int
    private static final String RUNTIME_STATE_PENDING_ADD_SCREEN = "launcher.add_screen";
    // Type: int
    private static final String RUNTIME_STATE_PENDING_ADD_CELL_X = "launcher.add_cellX";
    // Type: int
    private static final String RUNTIME_STATE_PENDING_ADD_CELL_Y = "launcher.add_cellY";
    // Type: int
    private static final String RUNTIME_STATE_PENDING_ADD_SPAN_X = "launcher.add_spanX";
    // Type: int
    private static final String RUNTIME_STATE_PENDING_ADD_SPAN_Y = "launcher.add_spanY";
    // Type: int
    private static final String RUNTIME_STATE_PENDING_ADD_COUNT_X = "launcher.add_countX";
    // Type: int
    private static final String RUNTIME_STATE_PENDING_ADD_COUNT_Y = "launcher.add_countY";
    // Type: int[]
    private static final String RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS = "launcher.add_occupied_cells";
    // Type: boolean
    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME = "launcher.rename_folder";
    // Type: long
    private static final String RUNTIME_STATE_PENDING_FOLDER_RENAME_ID = "launcher.rename_folder_id";

    static final int APPWIDGET_HOST_ID = 1024;

    private static final Object sLock = new Object();
    private static int sScreen = DEFAULT_SCREEN;

    private final BroadcastReceiver mCloseSystemDialogsReceiver = new CloseSystemDialogsIntentReceiver();
    private final ContentObserver mWidgetObserver = new AppWidgetResetObserver();

    private LayoutInflater mInflater;

    private DragController mDragController;
    private Workspace mWorkspace;

    private AppWidgetManager mAppWidgetManager;
    private LauncherAppWidgetHost mAppWidgetHost;

    private CellLayout.CellInfo mAddItemCellInfo;
    private CellLayout.CellInfo mMenuAddInfo;
    private final int[] mCellCoordinates = new int[2];
    private FolderInfo mFolderInfo;

    private DeleteZone mDeleteZone;
    private HandleView mHandleView;
    private AllAppsView mAllAppsGrid;

    private Bundle mSavedState;

    private SpannableStringBuilder mDefaultKeySsb = null;

    private boolean mWorkspaceLoading = true;

    private boolean mPaused = true;
    private boolean mRestoring;
    private boolean mWaitingForResult;

    private Bundle mSavedInstanceState;

    private LauncherModel mModel;
    private IconCache mIconCache;

    private ArrayList<ItemInfo> mDesktopItems = new ArrayList<ItemInfo>();
    private static HashMap<Long, FolderInfo> mFolders = new HashMap<Long, FolderInfo>();

    private ImageView mPreviousView;
    private ImageView mNextView;

    private DockBar dockbar; // hmg25 add for dock

    // Hotseats (quick-launch icons next to AllApps)
    private static final int NUM_HOTSEATS = 2;
    private String[] mHotseatConfig = null;
    private Intent[] mHotseats = null;
    private Drawable[] mHotseatIcons = null;
    private CharSequence[] mHotseatLabels = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	LauncherApplication app = ((LauncherApplication) getApplication());
	mModel = app.setLauncher(this);
	mIconCache = app.getIconCache();
	mDragController = new DragController(this);
	mInflater = getLayoutInflater();

	mAppWidgetManager = AppWidgetManager.getInstance(this);
	mAppWidgetHost = new LauncherAppWidgetHost(this, APPWIDGET_HOST_ID);
	mAppWidgetHost.startListening();

	if (PROFILE_STARTUP) {
	    android.os.Debug.startMethodTracing("/sdcard/launcher");
	}

	loadHotseats();
	checkForLocaleChange();
	setWallpaperDimension();

	setContentView(R.layout.launcher);
	setupViews();

	registerContentObservers();

	lockAllApps();

	mSavedState = savedInstanceState;
	restoreState(mSavedState);

	if (PROFILE_STARTUP) {
	    android.os.Debug.stopMethodTracing();
	}

	if (!mRestoring) {
	    mModel.startLoader(this, true);
	}

	// For handling default keys
	mDefaultKeySsb = new SpannableStringBuilder();
	Selection.setSelection(mDefaultKeySsb, 0);

	IntentFilter filter = new IntentFilter(
		Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
	registerReceiver(mCloseSystemDialogsReceiver, filter);
    }

    private void checkForLocaleChange() {
	final LocaleConfiguration localeConfiguration = new LocaleConfiguration();
	readConfiguration(this, localeConfiguration);

	final Configuration configuration = getResources().getConfiguration();

	final String previousLocale = localeConfiguration.locale;
	final String locale = configuration.locale.toString();

	final int previousMcc = localeConfiguration.mcc;
	final int mcc = configuration.mcc;

	final int previousMnc = localeConfiguration.mnc;
	final int mnc = configuration.mnc;

	boolean localeChanged = !locale.equals(previousLocale)
		|| mcc != previousMcc || mnc != previousMnc;

	if (localeChanged) {
	    localeConfiguration.locale = locale;
	    localeConfiguration.mcc = mcc;
	    localeConfiguration.mnc = mnc;

	    writeConfiguration(this, localeConfiguration);
	    mIconCache.flush();

	    loadHotseats();
	}
    }

    private static class LocaleConfiguration {
	public String locale;
	public int mcc = -1;
	public int mnc = -1;
    }

    private static void readConfiguration(Context context,
	    LocaleConfiguration configuration) {
	DataInputStream in = null;
	try {
	    in = new DataInputStream(context.openFileInput(PREFERENCES));
	    configuration.locale = in.readUTF();
	    configuration.mcc = in.readInt();
	    configuration.mnc = in.readInt();
	} catch (FileNotFoundException e) {
	    // Ignore
	} catch (IOException e) {
	    // Ignore
	} finally {
	    if (in != null) {
		try {
		    in.close();
		} catch (IOException e) {
		    // Ignore
		}
	    }
	}
    }

    private static void writeConfiguration(Context context,
	    LocaleConfiguration configuration) {
	DataOutputStream out = null;
	try {
	    out = new DataOutputStream(context.openFileOutput(PREFERENCES,
		    MODE_PRIVATE));
	    out.writeUTF(configuration.locale);
	    out.writeInt(configuration.mcc);
	    out.writeInt(configuration.mnc);
	    out.flush();
	} catch (FileNotFoundException e) {
	    // Ignore
	} catch (IOException e) {
	    // noinspection ResultOfMethodCallIgnored
	    context.getFileStreamPath(PREFERENCES).delete();
	} finally {
	    if (out != null) {
		try {
		    out.close();
		} catch (IOException e) {
		    // Ignore
		}
	    }
	}
    }

    static int getScreen() {
	synchronized (sLock) {
	    return sScreen;
	}
    }

    static void setScreen(int screen) {
	synchronized (sLock) {
	    sScreen = screen;
	}
    }

    private void setWallpaperDimension() {
	WallpaperManager wpm = (WallpaperManager) getSystemService(WALLPAPER_SERVICE);

	Display display = getWindowManager().getDefaultDisplay();
	boolean isPortrait = display.getWidth() < display.getHeight();

	final int width = isPortrait ? display.getWidth() : display.getHeight();
	final int height = isPortrait ? display.getHeight() : display
		.getWidth();
	wpm.suggestDesiredDimensions(width * WALLPAPER_SCREENS_SPAN, height);
    }

    // Note: This doesn't do all the client-id magic that BrowserProvider does
    // in Browser. (http://b/2425179)
    private Uri getDefaultBrowserUri() {
	String url = getString(R.string.default_browser_url);
	if (url.indexOf("{CID}") != -1) {
	    url = url.replace("{CID}", "android-google");
	}
	return Uri.parse(url);
    }

    // Load the Intent templates from arrays.xml to populate the hotseats. For
    // each Intent, if it resolves to a single app, use that as the launch
    // intent & use that app's label as the contentDescription. Otherwise,
    // retain the ResolveActivity so the user can pick an app.
    private void loadHotseats() {
	if (mHotseatConfig == null) {
	    mHotseatConfig = getResources().getStringArray(R.array.hotseats);
	    if (mHotseatConfig.length > 0) {
		mHotseats = new Intent[mHotseatConfig.length];
		mHotseatLabels = new CharSequence[mHotseatConfig.length];
		mHotseatIcons = new Drawable[mHotseatConfig.length];
	    } else {
		mHotseats = null;
		mHotseatIcons = null;
		mHotseatLabels = null;
	    }

	    TypedArray hotseatIconDrawables = getResources().obtainTypedArray(
		    R.array.hotseat_icons);
	    for (int i = 0; i < mHotseatConfig.length; i++) {
		// load icon for this slot; currently unrelated to the actual
		// activity
		try {
		    mHotseatIcons[i] = hotseatIconDrawables.getDrawable(i);
		} catch (ArrayIndexOutOfBoundsException ex) {
		    Log.w(TAG, "Missing hotseat_icons array item #" + i);
		    mHotseatIcons[i] = null;
		}
	    }
	    hotseatIconDrawables.recycle();
	}

	PackageManager pm = getPackageManager();
	for (int i = 0; i < mHotseatConfig.length; i++) {
	    Intent intent = null;
	    if (mHotseatConfig[i].equals("*BROWSER*")) {
		// magic value meaning "launch user's default web browser"
		// replace it with a generic web request so we can see if there
		// is indeed a default
		String defaultUri = getString(R.string.default_browser_url);
		intent = new Intent(Intent.ACTION_VIEW,
			((defaultUri != null) ? Uri.parse(defaultUri)
				: getDefaultBrowserUri()))
			.addCategory(Intent.CATEGORY_BROWSABLE);
		// note: if the user launches this without a default set, she
		// will always be taken to the default URL above; this is
		// unavoidable as we must specify a valid URL in order for the
		// chooser to appear, and once the user selects something, that
		// URL is unavoidably sent to the chosen app.
	    } else {
		try {
		    intent = Intent.parseUri(mHotseatConfig[i], 0);
		} catch (java.net.URISyntaxException ex) {
		    Log.w(TAG, "Invalid hotseat intent: " + mHotseatConfig[i]);
		    // bogus; leave intent=null
		}
	    }

	    if (intent == null) {
		mHotseats[i] = null;
		mHotseatLabels[i] = getText(R.string.activity_not_found);
		continue;
	    }

	    if (LOGD) {
		Log.d(TAG, "loadHotseats: hotseat " + i + " initial intent=["
			+ intent.toUri(Intent.URI_INTENT_SCHEME) + "]");
	    }

	    ResolveInfo bestMatch = pm.resolveActivity(intent,
		    PackageManager.MATCH_DEFAULT_ONLY);
	    List<ResolveInfo> allMatches = pm.queryIntentActivities(intent,
		    PackageManager.MATCH_DEFAULT_ONLY);
	    if (LOGD) {
		Log.d(TAG, "Best match for intent: " + bestMatch);
		Log.d(TAG, "All matches: ");
		for (ResolveInfo ri : allMatches) {
		    Log.d(TAG, "  --> " + ri);
		}
	    }
	    // did this resolve to a single app, or the resolver?
	    if (allMatches.size() == 0 || bestMatch == null) {
		// can't find any activity to handle this. let's leave the
		// intent as-is and let Launcher show a toast when it fails
		// to launch.
		mHotseats[i] = intent;

		// set accessibility text to "Not installed"
		mHotseatLabels[i] = getText(R.string.activity_not_found);
	    } else {
		boolean found = false;
		for (ResolveInfo ri : allMatches) {
		    if (bestMatch.activityInfo.name
			    .equals(ri.activityInfo.name)
			    && bestMatch.activityInfo.applicationInfo.packageName
				    .equals(ri.activityInfo.applicationInfo.packageName)) {
			found = true;
			break;
		    }
		}

		if (!found) {
		    if (LOGD)
			Log.d(TAG, "Multiple options, no default yet");
		    // the bestMatch is probably the ResolveActivity, meaning
		    // the
		    // user has not yet selected a default
		    // so: we'll keep the original intent for now
		    mHotseats[i] = intent;

		    // set the accessibility text to "Select shortcut"
		    mHotseatLabels[i] = getText(R.string.title_select_shortcut);
		} else {
		    // we have an app!
		    // now reconstruct the intent to launch it through the front
		    // door
		    ComponentName com = new ComponentName(
			    bestMatch.activityInfo.applicationInfo.packageName,
			    bestMatch.activityInfo.name);
		    mHotseats[i] = new Intent(Intent.ACTION_MAIN)
			    .setComponent(com);

		    // load the app label for accessibility
		    mHotseatLabels[i] = bestMatch.activityInfo.loadLabel(pm);
		}
	    }

	    if (LOGD) {
		Log.d(TAG, "loadHotseats: hotseat "
			+ i
			+ " final intent=["
			+ ((mHotseats[i] == null) ? "null" : mHotseats[i]
				.toUri(Intent.URI_INTENT_SCHEME)) + "] label=["
			+ mHotseatLabels[i] + "]");
	    }
	}
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
	mWaitingForResult = false;

	// The pattern used here is that a user PICKs a specific application,
	// which, depending on the target, might need to CREATE the actual
	// target.

	// For example, the user would PICK_SHORTCUT for "Music playlist", and
	// we
	// launch over to the Music app to actually CREATE_SHORTCUT.

	if (resultCode == RESULT_OK && mAddItemCellInfo != null) {
	    switch (requestCode) {
	    case REQUEST_PICK_APPLICATION:
		completeAddApplication(this, data, mAddItemCellInfo);
		break;
	    case REQUEST_PICK_SHORTCUT:
		processShortcut(data);
		break;
	    case REQUEST_CREATE_SHORTCUT:
		completeAddShortcut(data, mAddItemCellInfo);
		break;
	    case REQUEST_PICK_LIVE_FOLDER:
		addLiveFolder(data);
		break;
	    case REQUEST_CREATE_LIVE_FOLDER:
		completeAddLiveFolder(data, mAddItemCellInfo);
		break;
	    case REQUEST_PICK_APPWIDGET:
		addAppWidget(data);
		break;
	    case REQUEST_CREATE_APPWIDGET:
		completeAddAppWidget(data, mAddItemCellInfo);
		break;
	    case REQUEST_PICK_WALLPAPER:
		// We just wanted the activity result here so we can clear
		// mWaitingForResult
		break;
	    }
	} else if ((requestCode == REQUEST_PICK_APPWIDGET || requestCode == REQUEST_CREATE_APPWIDGET)
		&& resultCode == RESULT_CANCELED && data != null) {
	    // Clean up the appWidgetId if we canceled
	    int appWidgetId = data.getIntExtra(
		    AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
	    if (appWidgetId != -1) {
		mAppWidgetHost.deleteAppWidgetId(appWidgetId);
	    }
	}
    }

    @Override
    protected void onResume() {
	super.onResume();

	mPaused = false;

	if (mRestoring) {
	    mWorkspaceLoading = true;
	    mModel.startLoader(this, true);
	    mRestoring = false;
	}
    }

    @Override
    protected void onPause() {
	super.onPause();
	dismissPreview(mPreviousView);
	dismissPreview(mNextView);
	mDragController.cancelDrag();
    }

    @Override
    public Object onRetainNonConfigurationInstance() {
	// Flag the loader to stop early before switching
	mModel.stopLoader();
	mAllAppsGrid.surrender();
	return Boolean.TRUE;
    }

    // We can't hide the IME if it was forced open. So don't bother
    /*
     * @Override public void onWindowFocusChanged(boolean hasFocus) {
     * super.onWindowFocusChanged(hasFocus);
     * 
     * if (hasFocus) { final InputMethodManager inputManager =
     * (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
     * WindowManager.LayoutParams lp = getWindow().getAttributes();
     * inputManager.hideSoftInputFromWindow(lp.token, 0, new
     * android.os.ResultReceiver(new android.os.Handler()) { protected void
     * onReceiveResult(int resultCode, Bundle resultData) { Log.d(TAG,
     * "ResultReceiver got resultCode=" + resultCode); } }); Log.d(TAG,
     * "called hideSoftInputFromWindow from onWindowFocusChanged"); } }
     */

    private boolean acceptFilter() {
	final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
	return !inputManager.isFullscreenMode();
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
	boolean handled = super.onKeyDown(keyCode, event);
	if (!handled && acceptFilter() && keyCode != KeyEvent.KEYCODE_ENTER) {
	    boolean gotKey = TextKeyListener.getInstance().onKeyDown(
		    mWorkspace, mDefaultKeySsb, keyCode, event);
	    if (gotKey && mDefaultKeySsb != null && mDefaultKeySsb.length() > 0) {
		// something usable has been typed - start a search
		// the typed text will be retrieved and cleared by
		// showSearchDialog()
		// If there are multiple keystrokes before the search dialog
		// takes focus,
		// onSearchRequested() will be called for every keystroke,
		// but it is idempotent, so it's fine.
		return onSearchRequested();
	    }
	}

	// Eat the long press event so the keyboard doesn't come up.
	if (keyCode == KeyEvent.KEYCODE_MENU && event.isLongPress()) {
	    return true;
	}

	return handled;
    }

    private String getTypedText() {
	return mDefaultKeySsb.toString();
    }

    private void clearTypedText() {
	mDefaultKeySsb.clear();
	mDefaultKeySsb.clearSpans();
	Selection.setSelection(mDefaultKeySsb, 0);
    }

    /**
     * Restores the previous state, if it exists.
     * 
     * @param savedState
     *            The previous state.
     */
    private void restoreState(Bundle savedState) {
	if (savedState == null) {
	    return;
	}

	final boolean allApps = savedState.getBoolean(
		RUNTIME_STATE_ALL_APPS_FOLDER, false);
	if (allApps) {
	    showAllApps(false);
	}

	final int currentScreen = savedState.getInt(
		RUNTIME_STATE_CURRENT_SCREEN, -1);
	if (currentScreen > -1) {
	    mWorkspace.setCurrentScreen(currentScreen);
	}

	final int addScreen = savedState.getInt(
		RUNTIME_STATE_PENDING_ADD_SCREEN, -1);
	if (addScreen > -1) {
	    mAddItemCellInfo = new CellLayout.CellInfo();
	    final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
	    addItemCellInfo.valid = true;
	    addItemCellInfo.screen = addScreen;
	    addItemCellInfo.cellX = savedState
		    .getInt(RUNTIME_STATE_PENDING_ADD_CELL_X);
	    addItemCellInfo.cellY = savedState
		    .getInt(RUNTIME_STATE_PENDING_ADD_CELL_Y);
	    addItemCellInfo.spanX = savedState
		    .getInt(RUNTIME_STATE_PENDING_ADD_SPAN_X);
	    addItemCellInfo.spanY = savedState
		    .getInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y);
	    addItemCellInfo.findVacantCellsFromOccupied(savedState
		    .getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS),
		    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_X),
		    savedState.getInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y));
	    mRestoring = true;
	}

	boolean renameFolder = savedState.getBoolean(
		RUNTIME_STATE_PENDING_FOLDER_RENAME, false);
	if (renameFolder) {
	    long id = savedState
		    .getLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID);
	    mFolderInfo = mModel.getFolderById(this, mFolders, id);
	    mRestoring = true;
	}
    }

    /**
     * Finds all the views we need and configure them properly.
     */
    private void setupViews() {
	DragController dragController = mDragController;

	DragLayer dragLayer = (DragLayer) findViewById(R.id.drag_layer);
	dragLayer.setDragController(dragController);

	mAllAppsGrid = (AllAppsView) dragLayer.findViewById(R.id.all_apps_view);
	mAllAppsGrid.setLauncher(this);
	mAllAppsGrid.setDragController(dragController);
	((View) mAllAppsGrid).setWillNotDraw(false); // We don't want a hole
						     // punched in our window.
	// Manage focusability manually since this thing is always visible
	((View) mAllAppsGrid).setFocusable(false);

	mWorkspace = (Workspace) dragLayer.findViewById(R.id.workspace);
	final Workspace workspace = mWorkspace;
	workspace.setHapticFeedbackEnabled(false);

	DeleteZone deleteZone = (DeleteZone) dragLayer
		.findViewById(R.id.delete_zone);
	mDeleteZone = deleteZone;

	mHandleView = (HandleView) findViewById(R.id.all_apps_button);
	mHandleView.setLauncher(this);
	mHandleView.setOnClickListener(this);
	mHandleView.setOnLongClickListener(this);

	ImageView hotseatLeft = (ImageView) findViewById(R.id.hotseat_left);
	hotseatLeft.setContentDescription(mHotseatLabels[0]);
	hotseatLeft.setImageDrawable(mHotseatIcons[0]);
	ImageView hotseatRight = (ImageView) findViewById(R.id.hotseat_right);
	hotseatRight.setContentDescription(mHotseatLabels[1]);
	hotseatRight.setImageDrawable(mHotseatIcons[1]);

	mPreviousView = (ImageView) dragLayer
		.findViewById(R.id.previous_screen);
	mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);

	Drawable previous = mPreviousView.getDrawable();
	Drawable next = mNextView.getDrawable();
	mWorkspace.setIndicators(previous, next);

	mPreviousView.setHapticFeedbackEnabled(false);
	mPreviousView.setOnLongClickListener(this);
	mNextView.setHapticFeedbackEnabled(false);
	mNextView.setOnLongClickListener(this);

	workspace.setOnLongClickListener(this);
	workspace.setDragController(dragController);
	workspace.setLauncher(this);

	// hmg add for dock {
	dockbar = (DockBar) dragLayer.findViewById(R.id.dockbar);
	dockbar.setLauncher(this);
	dockbar.setDragController(dragController);
	// hmg add for dock }

	deleteZone.setLauncher(this);
	deleteZone.setDragController(dragController);
	deleteZone.setHandle(findViewById(R.id.all_apps_button_cluster));

	dragController.setDragScoller(workspace);
	dragController.setDragListener(deleteZone);
	dragController.setDockDragListener(dockbar); // hmg25 add for dock
	dragController.setScrollView(dragLayer);
	dragController.setMoveTarget(workspace);

	// The order here is bottom to top.
	dragController.addDropTarget(workspace);
	dragController.addDropTarget(dockbar); // hmg25 add for dock
	dragController.addDropTarget(deleteZone);
    }

    @SuppressWarnings( { "UnusedDeclaration" })
    public void previousScreen(View v) {
	if (!isAllAppsVisible()) {
	    mWorkspace.scrollLeft();
	}
    }

    @SuppressWarnings( { "UnusedDeclaration" })
    public void nextScreen(View v) {
	if (!isAllAppsVisible()) {
	    mWorkspace.scrollRight();
	}
    }

    @SuppressWarnings( { "UnusedDeclaration" })
    public void launchHotSeat(View v) {
	if (isAllAppsVisible())
	    return;

	int index = -1;
	if (v.getId() == R.id.hotseat_left) {
	    index = 0;
	} else if (v.getId() == R.id.hotseat_right) {
	    index = 1;
	}

	// reload these every tap; you never know when they might change
	loadHotseats();
	if (index >= 0 && index < mHotseats.length && mHotseats[index] != null) {
	    Intent intent = mHotseats[index];
	    startActivitySafely(mHotseats[index], "hotseat");
	}
    }

    /**
     * Creates a view representing a shortcut.
     * 
     * @param info
     *            The data structure describing the shortcut.
     * 
     * @return A View inflated from R.layout.application.
     */
    View createShortcut(ShortcutInfo info) {
	return createShortcut(R.layout.application, (ViewGroup) mWorkspace
		.getChildAt(mWorkspace.getCurrentScreen()), info);
    }

    /**
     * Creates a view representing a shortcut inflated from the specified
     * resource.
     * 
     * @param layoutResId
     *            The id of the XML layout used to create the shortcut.
     * @param parent
     *            The group the shortcut belongs to.
     * @param info
     *            The data structure describing the shortcut.
     * 
     * @return A View inflated from layoutResId.
     */
    View createShortcut(int layoutResId, ViewGroup parent, ShortcutInfo info) {
	TextView favorite = (TextView) mInflater.inflate(layoutResId, parent,
		false);

	favorite.setCompoundDrawablesWithIntrinsicBounds(null,
		new FastBitmapDrawable(info.getIcon(mIconCache)), null, null);
	favorite.setText(info.title);
	favorite.setTag(info);
	favorite.setOnClickListener(this);

	return favorite;
    }

    /**
     * Add an application shortcut to the workspace.
     * 
     * @param data
     *            The intent describing the application.
     * @param cellInfo
     *            The position on screen where to create the shortcut.
     */
    void completeAddApplication(Context context, Intent data,
	    CellLayout.CellInfo cellInfo) {
	cellInfo.screen = mWorkspace.getCurrentScreen();
	if (!findSingleSlot(cellInfo))
	    return;

	final ShortcutInfo info = mModel.getShortcutInfo(context
		.getPackageManager(), data, context);

	if (info != null) {
	    info.setActivity(data.getComponent(), Intent.FLAG_ACTIVITY_NEW_TASK
		    | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
	    info.container = ItemInfo.NO_ID;
	    mWorkspace.addApplicationShortcut(info, cellInfo,
		    isWorkspaceLocked());
	} else {
	    Log.e(TAG, "Couldn't find ActivityInfo for selected application: "
		    + data);
	}
    }

    /**
     * Add a shortcut to the workspace.
     * 
     * @param data
     *            The intent describing the shortcut.
     * @param cellInfo
     *            The position on screen where to create the shortcut.
     */
    private void completeAddShortcut(Intent data, CellLayout.CellInfo cellInfo) {
	cellInfo.screen = mWorkspace.getCurrentScreen();
	if (!findSingleSlot(cellInfo))
	    return;

	final ShortcutInfo info = mModel.addShortcut(this, data, cellInfo,
		false);

	if (!mRestoring) {
	    final View view = createShortcut(info);
	    mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY,
		    1, 1, isWorkspaceLocked());
	}
    }

    /**
     * Add a widget to the workspace.
     * 
     * @param data
     *            The intent describing the appWidgetId.
     * @param cellInfo
     *            The position on screen where to create the widget.
     */
    private void completeAddAppWidget(Intent data, CellLayout.CellInfo cellInfo) {
	Bundle extras = data.getExtras();
	int appWidgetId = extras
		.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);

	if (LOGD)
	    Log.d(TAG, "dumping extras content=" + extras.toString());

	AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager
		.getAppWidgetInfo(appWidgetId);

	// Calculate the grid spans needed to fit this widget
	CellLayout layout = (CellLayout) mWorkspace.getChildAt(cellInfo.screen);
	int[] spans = layout.rectToCell(appWidgetInfo.minWidth,
		appWidgetInfo.minHeight);

	// Try finding open space on Launcher screen
	final int[] xy = mCellCoordinates;
	if (!findSlot(cellInfo, xy, spans[0], spans[1])) {
	    if (appWidgetId != -1)
		mAppWidgetHost.deleteAppWidgetId(appWidgetId);
	    return;
	}

	// Build Launcher-specific widget info and save to database
	LauncherAppWidgetInfo launcherInfo = new LauncherAppWidgetInfo(
		appWidgetId);
	launcherInfo.spanX = spans[0];
	launcherInfo.spanY = spans[1];

	LauncherModel.addItemToDatabase(this, launcherInfo,
		LauncherSettings.Favorites.CONTAINER_DESKTOP, mWorkspace
			.getCurrentScreen(), xy[0], xy[1], false);

	if (!mRestoring) {
	    mDesktopItems.add(launcherInfo);

	    // Perform actual inflation because we're live
	    launcherInfo.hostView = mAppWidgetHost.createView(this,
		    appWidgetId, appWidgetInfo);

	    launcherInfo.hostView.setAppWidget(appWidgetId, appWidgetInfo);
	    launcherInfo.hostView.setTag(launcherInfo);

	    mWorkspace
		    .addInCurrentScreen(launcherInfo.hostView, xy[0], xy[1],
			    launcherInfo.spanX, launcherInfo.spanY,
			    isWorkspaceLocked());
	}
    }

    public void removeAppWidget(LauncherAppWidgetInfo launcherInfo) {
	mDesktopItems.remove(launcherInfo);
	launcherInfo.hostView = null;
    }

    public LauncherAppWidgetHost getAppWidgetHost() {
	return mAppWidgetHost;
    }

    void closeSystemDialogs() {
	getWindow().closeAllPanels();

	try {
	    dismissDialog(DIALOG_CREATE_SHORTCUT);
	    // Unlock the workspace if the dialog was showing
	} catch (Exception e) {
	    // An exception is thrown if the dialog is not visible, which is
	    // fine
	}

	try {
	    dismissDialog(DIALOG_RENAME_FOLDER);
	    // Unlock the workspace if the dialog was showing
	} catch (Exception e) {
	    // An exception is thrown if the dialog is not visible, which is
	    // fine
	}

	// Whatever we were doing is hereby canceled.
	mWaitingForResult = false;
    }

    @Override
    protected void onNewIntent(Intent intent) {
	super.onNewIntent(intent);

	// Close the menu
	if (Intent.ACTION_MAIN.equals(intent.getAction())) {
	    // also will cancel mWaitingForResult.
	    closeSystemDialogs();

	    boolean alreadyOnHome = ((intent.getFlags() & Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT) != Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
	    boolean allAppsVisible = isAllAppsVisible();
	    if (!mWorkspace.isDefaultScreenShowing()) {
		mWorkspace
			.moveToDefaultScreen(alreadyOnHome && !allAppsVisible);
	    }
	    closeAllApps(alreadyOnHome && allAppsVisible);

	    final View v = getWindow().peekDecorView();
	    if (v != null && v.getWindowToken() != null) {
		InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
		imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
	    }
	}
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
	// Do not call super here
	mSavedInstanceState = savedInstanceState;
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
	outState.putInt(RUNTIME_STATE_CURRENT_SCREEN, mWorkspace
		.getCurrentScreen());

	final ArrayList<Folder> folders = mWorkspace.getOpenFolders();
	if (folders.size() > 0) {
	    final int count = folders.size();
	    long[] ids = new long[count];
	    for (int i = 0; i < count; i++) {
		final FolderInfo info = folders.get(i).getInfo();
		ids[i] = info.id;
	    }
	    outState.putLongArray(RUNTIME_STATE_USER_FOLDERS, ids);
	} else {
	    super.onSaveInstanceState(outState);
	}

	// TODO should not do this if the drawer is currently closing.
	if (isAllAppsVisible()) {
	    outState.putBoolean(RUNTIME_STATE_ALL_APPS_FOLDER, true);
	}

	if (mAddItemCellInfo != null && mAddItemCellInfo.valid
		&& mWaitingForResult) {
	    final CellLayout.CellInfo addItemCellInfo = mAddItemCellInfo;
	    final CellLayout layout = (CellLayout) mWorkspace
		    .getChildAt(addItemCellInfo.screen);

	    outState.putInt(RUNTIME_STATE_PENDING_ADD_SCREEN,
		    addItemCellInfo.screen);
	    outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_X,
		    addItemCellInfo.cellX);
	    outState.putInt(RUNTIME_STATE_PENDING_ADD_CELL_Y,
		    addItemCellInfo.cellY);
	    outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_X,
		    addItemCellInfo.spanX);
	    outState.putInt(RUNTIME_STATE_PENDING_ADD_SPAN_Y,
		    addItemCellInfo.spanY);
	    outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_X, layout
		    .getCountX());
	    outState.putInt(RUNTIME_STATE_PENDING_ADD_COUNT_Y, layout
		    .getCountY());
	    outState.putBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS,
		    layout.getOccupiedCells());
	}

	if (mFolderInfo != null && mWaitingForResult) {
	    outState.putBoolean(RUNTIME_STATE_PENDING_FOLDER_RENAME, true);
	    outState.putLong(RUNTIME_STATE_PENDING_FOLDER_RENAME_ID,
		    mFolderInfo.id);
	}
    }

    @Override
    public void onDestroy() {
	super.onDestroy();

	try {
	    mAppWidgetHost.stopListening();
	} catch (NullPointerException ex) {
	    Log
		    .w(
			    TAG,
			    "problem while stopping AppWidgetHost during Launcher destruction",
			    ex);
	}

	TextKeyListener.getInstance().release();

	mModel.stopLoader();

	unbindDesktopItems();

	getContentResolver().unregisterContentObserver(mWidgetObserver);

	dismissPreview(mPreviousView);
	dismissPreview(mNextView);

	unregisterReceiver(mCloseSystemDialogsReceiver);
    }

    @Override
    public void startActivityForResult(Intent intent, int requestCode) {
	if (requestCode >= 0)
	    mWaitingForResult = true;
	super.startActivityForResult(intent, requestCode);
    }

    @Override
    public void startSearch(String initialQuery, boolean selectInitialQuery,
	    Bundle appSearchData, boolean globalSearch) {

	closeAllApps(true);

	if (initialQuery == null) {
	    // Use any text typed in the launcher as the initial query
	    initialQuery = getTypedText();
	    clearTypedText();
	}
	if (appSearchData == null) {
	    appSearchData = new Bundle();
	    // appSearchData.putString(Search.SOURCE, "launcher-search");
	}

	final SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
	searchManager.startSearch(initialQuery, selectInitialQuery,
		getComponentName(), appSearchData, globalSearch);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
	if (isWorkspaceLocked()) {
	    return false;
	}

	super.onCreateOptionsMenu(menu);

	menu.add(MENU_GROUP_ADD, MENU_ADD, 0, R.string.menu_add).setIcon(
		android.R.drawable.ic_menu_add).setAlphabeticShortcut('A');
	menu.add(MENU_GROUP_WALLPAPER, MENU_WALLPAPER_SETTINGS, 0,
		R.string.menu_wallpaper).setIcon(
		android.R.drawable.ic_menu_gallery).setAlphabeticShortcut('W');
	menu.add(0, MENU_SEARCH, 0, R.string.menu_search).setIcon(
		android.R.drawable.ic_search_category_default)
		.setAlphabeticShortcut(SearchManager.MENU_KEY);
	menu.add(0, MENU_NOTIFICATIONS, 0, R.string.menu_notifications)
		.setIcon(com.android.internal.R.drawable.ic_menu_notifications)
		.setAlphabeticShortcut('N');

	final Intent settings = new Intent(
		android.provider.Settings.ACTION_SETTINGS);
	settings.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
		| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

	menu.add(0, MENU_SETTINGS, 0, R.string.menu_settings).setIcon(
		android.R.drawable.ic_menu_preferences).setAlphabeticShortcut(
		'P').setIntent(settings);

	return true;
    }

    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
	super.onPrepareOptionsMenu(menu);

	// If all apps is animating, don't show the menu, because we don't know
	// which one to show.
	if (mAllAppsGrid.isVisible() && !mAllAppsGrid.isOpaque()) {
	    return false;
	}

	// Only show the add and wallpaper options when we're not in all apps.
	boolean visible = !mAllAppsGrid.isOpaque();
	menu.setGroupVisible(MENU_GROUP_ADD, visible);
	menu.setGroupVisible(MENU_GROUP_WALLPAPER, visible);

	// Disable add if the workspace is full.
	if (visible) {
	    mMenuAddInfo = mWorkspace.findAllVacantCells(null);
	    menu.setGroupEnabled(MENU_GROUP_ADD, mMenuAddInfo != null
		    && mMenuAddInfo.valid);
	}

	return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
	switch (item.getItemId()) {
	case MENU_ADD:
	    addItems();
	    return true;
	case MENU_WALLPAPER_SETTINGS:
	    startWallpaper();
	    return true;
	case MENU_SEARCH:
	    onSearchRequested();
	    return true;
	case MENU_NOTIFICATIONS:
	    showNotifications();
	    return true;
	}

	return super.onOptionsItemSelected(item);
    }

    /**
     * Indicates that we want global search for this activity by setting the
     * globalSearch argument for {@link #startSearch} to true.
     */

    @Override
    public boolean onSearchRequested() {
	startSearch(null, false, null, true);
	return true;
    }

    public boolean isWorkspaceLocked() {
	return mWorkspaceLoading || mWaitingForResult;
    }

    private void addItems() {
	closeAllApps(true);
	showAddDialog(mMenuAddInfo);
    }

    void addAppWidget(Intent data) {
	// TODO: catch bad widget exception when sent
	int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
		-1);
	AppWidgetProviderInfo appWidget = mAppWidgetManager
		.getAppWidgetInfo(appWidgetId);

	if (appWidget.configure != null) {
	    // Launch over to configure widget, if needed
	    Intent intent = new Intent(
		    AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
	    intent.setComponent(appWidget.configure);
	    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);

	    startActivityForResultSafely(intent, REQUEST_CREATE_APPWIDGET);
	} else {
	    // Otherwise just add it
	    onActivityResult(REQUEST_CREATE_APPWIDGET, Activity.RESULT_OK, data);
	}
    }

    void processShortcut(Intent intent) {
	// Handle case where user selected "Applications"
	String applicationName = getResources().getString(
		R.string.group_applications);
	String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);

	if (applicationName != null && applicationName.equals(shortcutName)) {
	    Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
	    mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);

	    Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
	    pickIntent.putExtra(Intent.EXTRA_INTENT, mainIntent);
	    startActivityForResult(pickIntent, REQUEST_PICK_APPLICATION);
	} else {
	    startActivityForResult(intent, REQUEST_CREATE_SHORTCUT);
	}
    }

    void addLiveFolder(Intent intent) {
	// Handle case where user selected "Folder"
	String folderName = getResources().getString(R.string.group_folder);
	String shortcutName = intent.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);

	if (folderName != null && folderName.equals(shortcutName)) {
	    addFolder();
	} else {
	    startActivityForResult(intent, REQUEST_CREATE_LIVE_FOLDER);
	}
    }

    void addFolder() {
	UserFolderInfo folderInfo = new UserFolderInfo();
	folderInfo.title = getText(R.string.folder_name);

	CellLayout.CellInfo cellInfo = mAddItemCellInfo;
	cellInfo.screen = mWorkspace.getCurrentScreen();
	if (!findSingleSlot(cellInfo))
	    return;

	// Update the model
	LauncherModel.addItemToDatabase(this, folderInfo,
		LauncherSettings.Favorites.CONTAINER_DESKTOP, mWorkspace
			.getCurrentScreen(), cellInfo.cellX, cellInfo.cellY,
		false);
	mFolders.put(folderInfo.id, folderInfo);

	// Create the view
	FolderIcon newFolder = FolderIcon.fromXml(R.layout.folder_icon, this,
		(ViewGroup) mWorkspace
			.getChildAt(mWorkspace.getCurrentScreen()), folderInfo);
	mWorkspace.addInCurrentScreen(newFolder, cellInfo.cellX,
		cellInfo.cellY, 1, 1, isWorkspaceLocked());
    }

    void removeFolder(FolderInfo folder) {
	mFolders.remove(folder.id);
    }

    private void completeAddLiveFolder(Intent data, CellLayout.CellInfo cellInfo) {
	cellInfo.screen = mWorkspace.getCurrentScreen();
	if (!findSingleSlot(cellInfo))
	    return;

	final LiveFolderInfo info = addLiveFolder(this, data, cellInfo, false);

	if (!mRestoring) {
	    final View view = LiveFolderIcon.fromXml(R.layout.live_folder_icon,
		    this, (ViewGroup) mWorkspace.getChildAt(mWorkspace
			    .getCurrentScreen()), info);
	    mWorkspace.addInCurrentScreen(view, cellInfo.cellX, cellInfo.cellY,
		    1, 1, isWorkspaceLocked());
	}
    }

    static LiveFolderInfo addLiveFolder(Context context, Intent data,
	    CellLayout.CellInfo cellInfo, boolean notify) {

	Intent baseIntent = data
		.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_BASE_INTENT);
	String name = data.getStringExtra(LiveFolders.EXTRA_LIVE_FOLDER_NAME);

	Drawable icon = null;
	Intent.ShortcutIconResource iconResource = null;

	Parcelable extra = data
		.getParcelableExtra(LiveFolders.EXTRA_LIVE_FOLDER_ICON);
	if (extra != null && extra instanceof Intent.ShortcutIconResource) {
	    try {
		iconResource = (Intent.ShortcutIconResource) extra;
		final PackageManager packageManager = context
			.getPackageManager();
		Resources resources = packageManager
			.getResourcesForApplication(iconResource.packageName);
		final int id = resources.getIdentifier(
			iconResource.resourceName, null, null);
		icon = resources.getDrawable(id);
	    } catch (Exception e) {
		Log.w(TAG, "Could not load live folder icon: " + extra);
	    }
	}

	if (icon == null) {
	    icon = context.getResources().getDrawable(
		    R.drawable.ic_launcher_folder);
	}

	final LiveFolderInfo info = new LiveFolderInfo();
	info.icon = Utilities.createIconBitmap(icon, context);
	info.title = name;
	info.iconResource = iconResource;
	info.uri = data.getData();
	info.baseIntent = baseIntent;
	info.displayMode = data.getIntExtra(
		LiveFolders.EXTRA_LIVE_FOLDER_DISPLAY_MODE,
		LiveFolders.DISPLAY_MODE_GRID);

	LauncherModel.addItemToDatabase(context, info,
		LauncherSettings.Favorites.CONTAINER_DESKTOP, cellInfo.screen,
		cellInfo.cellX, cellInfo.cellY, notify);
	mFolders.put(info.id, info);

	return info;
    }

    private boolean findSingleSlot(CellLayout.CellInfo cellInfo) {
	final int[] xy = new int[2];
	if (findSlot(cellInfo, xy, 1, 1)) {
	    cellInfo.cellX = xy[0];
	    cellInfo.cellY = xy[1];
	    return true;
	}
	return false;
    }

    private boolean findSlot(CellLayout.CellInfo cellInfo, int[] xy, int spanX,
	    int spanY) {
	if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
	    boolean[] occupied = mSavedState != null ? mSavedState
		    .getBooleanArray(RUNTIME_STATE_PENDING_ADD_OCCUPIED_CELLS)
		    : null;
	    cellInfo = mWorkspace.findAllVacantCells(occupied);
	    if (!cellInfo.findCellForSpan(xy, spanX, spanY)) {
		Toast.makeText(this, getString(R.string.out_of_space),
			Toast.LENGTH_SHORT).show();
		return false;
	    }
	}
	return true;
    }

    private void showNotifications() {
	final StatusBarManager statusBar = (StatusBarManager) getSystemService(STATUS_BAR_SERVICE);
	if (statusBar != null) {
	    statusBar.expand();
	}
    }

    private void startWallpaper() {
	closeAllApps(true);
	final Intent pickWallpaper = new Intent(Intent.ACTION_SET_WALLPAPER);
	Intent chooser = Intent.createChooser(pickWallpaper,
		getText(R.string.chooser_wallpaper));
	// NOTE: Adds a configure option to the chooser if the wallpaper
	// supports it
	// Removed in Eclair MR1
	// WallpaperManager wm = (WallpaperManager)
	// getSystemService(Context.WALLPAPER_SERVICE);
	// WallpaperInfo wi = wm.getWallpaperInfo();
	// if (wi != null && wi.getSettingsActivity() != null) {
	// LabeledIntent li = new LabeledIntent(getPackageName(),
	// R.string.configure_wallpaper, 0);
	// li.setClassName(wi.getPackageName(), wi.getSettingsActivity());
	// chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Intent[] { li });
	// }
	startActivityForResult(chooser, REQUEST_PICK_WALLPAPER);
    }

    /**
     * Registers various content observers. The current implementation registers
     * only a favorites observer to keep track of the favorites applications.
     */
    private void registerContentObservers() {
	ContentResolver resolver = getContentResolver();
	resolver.registerContentObserver(
		LauncherProvider.CONTENT_APPWIDGET_RESET_URI, true,
		mWidgetObserver);
    }

    @Override
    public boolean dispatchKeyEvent(KeyEvent event) {
	if (event.getAction() == KeyEvent.ACTION_DOWN) {
	    switch (event.getKeyCode()) {
	    case KeyEvent.KEYCODE_HOME:
		return true;
	    case KeyEvent.KEYCODE_VOLUME_DOWN:
		if (SystemProperties.getInt("debug.launcher2.dumpstate", 0) != 0) {
		    dumpState();
		    return true;
		}
		break;
	    }
	} else if (event.getAction() == KeyEvent.ACTION_UP) {
	    switch (event.getKeyCode()) {
	    case KeyEvent.KEYCODE_HOME:
		return true;
	    }
	}

	return super.dispatchKeyEvent(event);
    }

    @Override
    public void onBackPressed() {
	if (isAllAppsVisible()) {
	    closeAllApps(true);
	} else {
	    closeFolder();
	}
	dismissPreview(mPreviousView);
	dismissPreview(mNextView);
    }

    private void closeFolder() {
	Folder folder = mWorkspace.getOpenFolder();
	if (folder != null) {
	    closeFolder(folder);
	}
    }

    void closeFolder(Folder folder) {
	folder.getInfo().opened = false;
	ViewGroup parent = (ViewGroup) folder.getParent();
	if (parent != null) {
	    parent.removeView(folder);
	    if (folder instanceof DropTarget) {
		// Live folders aren't DropTargets.
		mDragController.removeDropTarget((DropTarget) folder);
	    }
	}
	folder.onClose();
    }

    /**
     * Re-listen when widgets are reset.
     */
    private void onAppWidgetReset() {
	mAppWidgetHost.startListening();
    }

    /**
     * Go through the and disconnect any of the callbacks in the drawables and
     * the views or we leak the previous Home screen on orientation change.
     */
    private void unbindDesktopItems() {
	for (ItemInfo item : mDesktopItems) {
	    item.unbind();
	}
    }

    /**
     * Launches the intent referred by the clicked shortcut.
     * 
     * @param v
     *            The view representing the clicked shortcut.
     */
    public void onClick(View v) {
	Object tag = v.getTag();
	if (tag instanceof ShortcutInfo) {
	    // Open shortcut
	    final Intent intent = ((ShortcutInfo) tag).intent;
	    int[] pos = new int[2];
	    v.getLocationOnScreen(pos);
	    intent.setSourceBounds(new Rect(pos[0], pos[1], pos[0]
		    + v.getWidth(), pos[1] + v.getHeight()));
	    startActivitySafely(intent, tag);
	} else if (tag instanceof FolderInfo) {
	    handleFolderClick((FolderInfo) tag);
	} else if (v == mHandleView) {
	    if (isAllAppsVisible()) {
		closeAllApps(true);
	    } else {
		showAllApps(true);
	    }
	}
    }

    void startActivitySafely(Intent intent, Object tag) {
	intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
	try {
	    startActivity(intent);
	} catch (ActivityNotFoundException e) {
	    Toast.makeText(this, R.string.activity_not_found,
		    Toast.LENGTH_SHORT).show();
	    Log.e(TAG, "Unable to launch. tag=" + tag + " intent=" + intent, e);
	} catch (SecurityException e) {
	    Toast.makeText(this, R.string.activity_not_found,
		    Toast.LENGTH_SHORT).show();
	    Log
		    .e(
			    TAG,
			    "Launcher does not have the permission to launch "
				    + intent
				    + ". Make sure to create a MAIN intent-filter for the corresponding activity "
				    + "or use the exported attribute for this activity. "
				    + "tag=" + tag + " intent=" + intent, e);
	}
    }

    void startActivityForResultSafely(Intent intent, int requestCode) {
	try {
	    startActivityForResult(intent, requestCode);
	} catch (ActivityNotFoundException e) {
	    Toast.makeText(this, R.string.activity_not_found,
		    Toast.LENGTH_SHORT).show();
	} catch (SecurityException e) {
	    Toast.makeText(this, R.string.activity_not_found,
		    Toast.LENGTH_SHORT).show();
	    Log
		    .e(
			    TAG,
			    "Launcher does not have the permission to launch "
				    + intent
				    + ". Make sure to create a MAIN intent-filter for the corresponding activity "
				    + "or use the exported attribute for this activity.",
			    e);
	}
    }

    private void handleFolderClick(FolderInfo folderInfo) {
	if (!folderInfo.opened) {
	    // Close any open folder
	    closeFolder();
	    // Open the requested folder
	    openFolder(folderInfo);
	} else {
	    // Find the open folder...
	    Folder openFolder = mWorkspace.getFolderForTag(folderInfo);
	    int folderScreen;
	    if (openFolder != null) {
		folderScreen = mWorkspace.getScreenForView(openFolder);
		// .. and close it
		closeFolder(openFolder);
		if (folderScreen != mWorkspace.getCurrentScreen()) {
		    // Close any folder open on the current screen
		    closeFolder();
		    // Pull the folder onto this screen
		    openFolder(folderInfo);
		}
	    }
	}
    }

    /**
     * Opens the user fodler described by the specified tag. The opening of the
     * folder is animated relative to the specified View. If the View is null,
     * no animation is played.
     * 
     * @param folderInfo
     *            The FolderInfo describing the folder to open.
     */
    private void openFolder(FolderInfo folderInfo) {
	Folder openFolder;

	if (folderInfo instanceof UserFolderInfo) {
	    openFolder = UserFolder.fromXml(this);
	} else if (folderInfo instanceof LiveFolderInfo) {
	    openFolder = com.android.launcherEx.LiveFolder.fromXml(this,
		    folderInfo);
	} else {
	    return;
	}

	openFolder.setDragController(mDragController);
	openFolder.setLauncher(this);

	openFolder.bind(folderInfo);
	folderInfo.opened = true;

	mWorkspace.addInScreen(openFolder, folderInfo.screen, 0, 0, 4, 4);
	openFolder.onOpen();
    }

    public boolean onLongClick(View v) {
	switch (v.getId()) {
	case R.id.previous_screen:
	    if (!isAllAppsVisible()) {
		mWorkspace.performHapticFeedback(
			HapticFeedbackConstants.LONG_PRESS,
			HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
		showPreviews(v);
	    }
	    return true;
	case R.id.next_screen:
	    if (!isAllAppsVisible()) {
		mWorkspace.performHapticFeedback(
			HapticFeedbackConstants.LONG_PRESS,
			HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
		showPreviews(v);
	    }
	    return true;
	case R.id.all_apps_button:
	    if (!isAllAppsVisible()) {
		mWorkspace.performHapticFeedback(
			HapticFeedbackConstants.LONG_PRESS,
			HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
		showPreviews(v);
	    }
	    return true;
	}

	if (isWorkspaceLocked()) {
	    return false;
	}

	if (!(v instanceof CellLayout)) {
	    v = (View) v.getParent();
	}

	CellLayout.CellInfo cellInfo = (CellLayout.CellInfo) v.getTag();

	// This happens when long clicking an item with the dpad/trackball
	if (cellInfo == null) {
	    return true;
	}

	if (mWorkspace.allowLongPress()) {
	    if (cellInfo.cell == null) {
		if (cellInfo.valid) {
		    // User long pressed on empty space
		    mWorkspace.setAllowLongPress(false);
		    mWorkspace.performHapticFeedback(
			    HapticFeedbackConstants.LONG_PRESS,
			    HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
		    showAddDialog(cellInfo);
		}
	    } else {
		if (!(cellInfo.cell instanceof Folder)) {
		    // User long pressed on an item
		    mWorkspace.performHapticFeedback(
			    HapticFeedbackConstants.LONG_PRESS,
			    HapticFeedbackConstants.FLAG_IGNORE_VIEW_SETTING);
		    mWorkspace.startDrag(cellInfo);
		}
	    }
	}
	return true;
    }

    // hmg25 add for HTCpreview {
    public void dismissPreviews() {
	mWorkspace.openSense(false);
    }
    // hmg25 add for HTCpreview }

    @SuppressWarnings( { "unchecked" })
    private void dismissPreview(final View v) {
	final PopupWindow window = (PopupWindow) v.getTag();
	if (window != null) {
	    window.setOnDismissListener(new PopupWindow.OnDismissListener() {
		public void onDismiss() {
		    ViewGroup group = (ViewGroup) v.getTag(R.id.workspace);
		    int count = group.getChildCount();
		    for (int i = 0; i < count; i++) {
			((ImageView) group.getChildAt(i))
				.setImageDrawable(null);
		    }
		    ArrayList<Bitmap> bitmaps = (ArrayList<Bitmap>) v
			    .getTag(R.id.icon);
		    for (Bitmap bitmap : bitmaps)
			bitmap.recycle();

		    v.setTag(R.id.workspace, null);
		    v.setTag(R.id.icon, null);
		    window.setOnDismissListener(null);
		}
	    });
	    window.dismiss();
	}
	v.setTag(null);
    }

    private void showPreviews(View anchor) {
	showPreviews(anchor, 0, mWorkspace.getChildCount());
    }

    private void showPreviews(final View anchor, int start, int end) {
	// hmg25 add for HTCpreview {
	if (true) {
	    mWorkspace.openSense(true);
	} else {
	    // hmg25 add for HTCpreview }
	    final Resources resources = getResources();
	    final Workspace workspace = mWorkspace;

	    CellLayout cell = ((CellLayout) workspace.getChildAt(start));

	    float max = workspace.getChildCount();

	    final Rect r = new Rect();
	    resources.getDrawable(R.drawable.preview_background).getPadding(r);
	    int extraW = (int) ((r.left + r.right) * max);
	    int extraH = r.top + r.bottom;

	    int aW = cell.getWidth() - extraW;
	    float w = aW / max;

	    int width = cell.getWidth();
	    int height = cell.getHeight();
	    int x = cell.getLeftPadding();
	    int y = cell.getTopPadding();
	    width -= (x + cell.getRightPadding());
	    height -= (y + cell.getBottomPadding());

	    float scale = w / width;

	    int count = end - start;

	    final float sWidth = width * scale;
	    float sHeight = height * scale;

	    LinearLayout preview = new LinearLayout(this);

	    PreviewTouchHandler handler = new PreviewTouchHandler(anchor);
	    ArrayList<Bitmap> bitmaps = new ArrayList<Bitmap>(count);

	    for (int i = start; i < end; i++) {
		ImageView image = new ImageView(this);
		cell = (CellLayout) workspace.getChildAt(i);

		final Bitmap bitmap = Bitmap.createBitmap((int) sWidth,
			(int) sHeight, Bitmap.Config.ARGB_8888);

		final Canvas c = new Canvas(bitmap);
		c.scale(scale, scale);
		c.translate(-cell.getLeftPadding(), -cell.getTopPadding());
		cell.dispatchDraw(c);

		image.setBackgroundDrawable(resources
			.getDrawable(R.drawable.preview_background));
		image.setImageBitmap(bitmap);
		image.setTag(i);
		image.setOnClickListener(handler);
		image.setOnFocusChangeListener(handler);
		image.setFocusable(true);
		if (i == mWorkspace.getCurrentScreen())
		    image.requestFocus();

		preview.addView(image, LinearLayout.LayoutParams.WRAP_CONTENT,
			LinearLayout.LayoutParams.WRAP_CONTENT);

		bitmaps.add(bitmap);
	    }

	    final PopupWindow p = new PopupWindow(this);
	    p.setContentView(preview);
	    p.setWidth((int) (sWidth * count + extraW));
	    p.setHeight((int) (sHeight + extraH));
	    p.setAnimationStyle(R.style.AnimationPreview);
	    p.setOutsideTouchable(true);
	    p.setFocusable(true);
	    p.setBackgroundDrawable(new ColorDrawable(0));
	    p.showAsDropDown(anchor, 0, 0);

	    p.setOnDismissListener(new PopupWindow.OnDismissListener() {
		public void onDismiss() {
		    dismissPreview(anchor);
		}
	    });

	    anchor.setTag(p);
	    anchor.setTag(R.id.workspace, preview);
	    anchor.setTag(R.id.icon, bitmaps);
	} // hmg25 add for HTCpreview
    }

    class PreviewTouchHandler implements View.OnClickListener, Runnable,
	    View.OnFocusChangeListener {
	private final View mAnchor;

	public PreviewTouchHandler(View anchor) {
	    mAnchor = anchor;
	}

	public void onClick(View v) {
	    mWorkspace.snapToScreen((Integer) v.getTag());
	    v.post(this);
	}

	public void run() {
	    dismissPreview(mAnchor);
	}

	public void onFocusChange(View v, boolean hasFocus) {
	    if (hasFocus) {
		mWorkspace.snapToScreen((Integer) v.getTag());
	    }
	}
    }

    Workspace getWorkspace() {
	return mWorkspace;
    }

    @Override
    protected Dialog onCreateDialog(int id) {
	switch (id) {
	case DIALOG_CREATE_SHORTCUT:
	    return new CreateShortcut().createDialog();
	case DIALOG_RENAME_FOLDER:
	    return new RenameFolder().createDialog();
	}

	return super.onCreateDialog(id);
    }

    @Override
    protected void onPrepareDialog(int id, Dialog dialog) {
	switch (id) {
	case DIALOG_CREATE_SHORTCUT:
	    break;
	case DIALOG_RENAME_FOLDER:
	    if (mFolderInfo != null) {
		EditText input = (EditText) dialog
			.findViewById(R.id.folder_name);
		final CharSequence text = mFolderInfo.title;
		input.setText(text);
		input.setSelection(0, text.length());
	    }
	    break;
	}
    }

    void showRenameDialog(FolderInfo info) {
	mFolderInfo = info;
	mWaitingForResult = true;
	showDialog(DIALOG_RENAME_FOLDER);
    }

    private void showAddDialog(CellLayout.CellInfo cellInfo) {
	mAddItemCellInfo = cellInfo;
	mWaitingForResult = true;
	showDialog(DIALOG_CREATE_SHORTCUT);
    }

    private void pickShortcut() {
	Bundle bundle = new Bundle();

	ArrayList<String> shortcutNames = new ArrayList<String>();
	shortcutNames.add(getString(R.string.group_applications));
	bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME, shortcutNames);

	ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
	shortcutIcons.add(ShortcutIconResource.fromContext(Launcher.this,
		R.drawable.ic_launcher_application));
	bundle.putParcelableArrayList(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
		shortcutIcons);

	Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
	pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(
		Intent.ACTION_CREATE_SHORTCUT));
	pickIntent.putExtra(Intent.EXTRA_TITLE,
		getText(R.string.title_select_shortcut));
	pickIntent.putExtras(bundle);

	startActivityForResult(pickIntent, REQUEST_PICK_SHORTCUT);
    }

    private class RenameFolder {
	private EditText mInput;

	Dialog createDialog() {
	    final View layout = View.inflate(Launcher.this,
		    R.layout.rename_folder, null);
	    mInput = (EditText) layout.findViewById(R.id.folder_name);

	    AlertDialog.Builder builder = new AlertDialog.Builder(Launcher.this);
	    builder.setIcon(0);
	    builder.setTitle(getString(R.string.rename_folder_title));
	    builder.setCancelable(true);
	    builder.setOnCancelListener(new Dialog.OnCancelListener() {
		public void onCancel(DialogInterface dialog) {
		    cleanup();
		}
	    });
	    builder.setNegativeButton(getString(R.string.cancel_action),
		    new Dialog.OnClickListener() {
			public void onClick(DialogInterface dialog, int which) {
			    cleanup();
			}
		    });
	    builder.setPositiveButton(getString(R.string.rename_action),
		    new Dialog.OnClickListener() {
			public void onClick(DialogInterface dialog, int which) {
			    changeFolderName();
			}
		    });
	    builder.setView(layout);

	    final AlertDialog dialog = builder.create();
	    dialog.setOnShowListener(new DialogInterface.OnShowListener() {
		public void onShow(DialogInterface dialog) {
		    mWaitingForResult = true;
		    mInput.requestFocus();
		    InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
		    inputManager.showSoftInput(mInput, 0);
		}
	    });

	    return dialog;
	}

	private void changeFolderName() {
	    final String name = mInput.getText().toString();
	    if (!TextUtils.isEmpty(name)) {
		// Make sure we have the right folder info
		mFolderInfo = mFolders.get(mFolderInfo.id);
		mFolderInfo.title = name;
		LauncherModel.updateItemInDatabase(Launcher.this, mFolderInfo);

		if (mWorkspaceLoading) {
		    lockAllApps();
		    mModel.startLoader(Launcher.this, false);
		} else {
		    final FolderIcon folderIcon = (FolderIcon) mWorkspace
			    .getViewForTag(mFolderInfo);
		    if (folderIcon != null) {
			folderIcon.setText(name);
			getWorkspace().requestLayout();
		    } else {
			lockAllApps();
			mWorkspaceLoading = true;
			mModel.startLoader(Launcher.this, false);
		    }
		}
	    }
	    cleanup();
	}

	private void cleanup() {
	    dismissDialog(DIALOG_RENAME_FOLDER);
	    mWaitingForResult = false;
	    mFolderInfo = null;
	}
    }

    // Now a part of LauncherModel.Callbacks. Used to reorder loading steps.
    public boolean isAllAppsVisible() {
	return (mAllAppsGrid != null) ? mAllAppsGrid.isVisible() : false;
    }

    // AllAppsView.Watcher
    public void zoomed(float zoom) {
	if (zoom == 1.0f) {
	    mWorkspace.setVisibility(View.GONE);
	}
    }

    void showAllApps(boolean animated) {
	mAllAppsGrid.zoom(1.0f, animated);

	((View) mAllAppsGrid).setFocusable(true);
	((View) mAllAppsGrid).requestFocus();

	// TODO: fade these two too
	mDeleteZone.setVisibility(View.GONE);
    }

    /**
     * Things to test when changing this code. - Home from workspace - from
     * center screen - from other screens - Home from all apps - from center
     * screen - from other screens - Back from all apps - from center screen -
     * from other screens - Launch app from workspace and quit - with back -
     * with home - Launch app from all apps and quit - with back - with home -
     * Go to a screen that's not the default, then all apps, and launch and app,
     * and go back - with back -with home - On workspace, long press power and
     * go back - with back - with home - On all apps, long press power and go
     * back - with back - with home - On workspace, power off - On all apps,
     * power off - Launch an app and turn off the screen while in that app - Go
     * back with home key - Go back with back key TODO: make this not go to
     * workspace - From all apps - From workspace - Enter and exit car mode
     * (becuase it causes an extra configuration changed) - From all apps - From
     * the center workspace - From another workspace
     */
    void closeAllApps(boolean animated) {
	if (mAllAppsGrid.isVisible()) {
	    mWorkspace.setVisibility(View.VISIBLE);
	    mAllAppsGrid.zoom(0.0f, animated);
	    ((View) mAllAppsGrid).setFocusable(false);
	    mWorkspace.getChildAt(mWorkspace.getCurrentScreen()).requestFocus();
	}
    }

    void lockAllApps() {
	// TODO
    }

    void unlockAllApps() {
	// TODO
    }

    /**
     * Displays the shortcut creation dialog and launches, if necessary, the
     * appropriate activity.
     */
    private class CreateShortcut implements DialogInterface.OnClickListener,
	    DialogInterface.OnCancelListener,
	    DialogInterface.OnDismissListener, DialogInterface.OnShowListener {

	private AddAdapter mAdapter;

	Dialog createDialog() {
	    mAdapter = new AddAdapter(Launcher.this);

	    final AlertDialog.Builder builder = new AlertDialog.Builder(
		    Launcher.this);
	    builder.setTitle(getString(R.string.menu_item_add_item));
	    builder.setAdapter(mAdapter, this);

	    builder.setInverseBackgroundForced(true);

	    AlertDialog dialog = builder.create();
	    dialog.setOnCancelListener(this);
	    dialog.setOnDismissListener(this);
	    dialog.setOnShowListener(this);

	    return dialog;
	}

	public void onCancel(DialogInterface dialog) {
	    mWaitingForResult = false;
	    cleanup();
	}

	public void onDismiss(DialogInterface dialog) {
	}

	private void cleanup() {
	    try {
		dismissDialog(DIALOG_CREATE_SHORTCUT);
	    } catch (Exception e) {
		// An exception is thrown if the dialog is not visible, which is
		// fine
	    }
	}

	/**
	 * Handle the action clicked in the "Add to home" dialog.
	 */
	public void onClick(DialogInterface dialog, int which) {
	    Resources res = getResources();
	    cleanup();

	    switch (which) {
	    case AddAdapter.ITEM_SHORTCUT: {
		// Insert extra item to handle picking application
		pickShortcut();
		break;
	    }

	    case AddAdapter.ITEM_APPWIDGET: {
		int appWidgetId = Launcher.this.mAppWidgetHost
			.allocateAppWidgetId();

		Intent pickIntent = new Intent(
			AppWidgetManager.ACTION_APPWIDGET_PICK);
		pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
			appWidgetId);
		// start the pick activity
		startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
		break;
	    }

	    case AddAdapter.ITEM_LIVE_FOLDER: {
		// Insert extra item to handle inserting folder
		Bundle bundle = new Bundle();

		ArrayList<String> shortcutNames = new ArrayList<String>();
		shortcutNames.add(res.getString(R.string.group_folder));
		bundle.putStringArrayList(Intent.EXTRA_SHORTCUT_NAME,
			shortcutNames);

		ArrayList<ShortcutIconResource> shortcutIcons = new ArrayList<ShortcutIconResource>();
		shortcutIcons.add(ShortcutIconResource.fromContext(
			Launcher.this, R.drawable.ic_launcher_folder));
		bundle.putParcelableArrayList(
			Intent.EXTRA_SHORTCUT_ICON_RESOURCE, shortcutIcons);

		Intent pickIntent = new Intent(Intent.ACTION_PICK_ACTIVITY);
		pickIntent.putExtra(Intent.EXTRA_INTENT, new Intent(
			LiveFolders.ACTION_CREATE_LIVE_FOLDER));
		pickIntent.putExtra(Intent.EXTRA_TITLE,
			getText(R.string.title_select_live_folder));
		pickIntent.putExtras(bundle);

		startActivityForResult(pickIntent, REQUEST_PICK_LIVE_FOLDER);
		break;
	    }

	    case AddAdapter.ITEM_WALLPAPER: {
		startWallpaper();
		break;
	    }
	    }
	}

	public void onShow(DialogInterface dialog) {
	    mWaitingForResult = true;
	}
    }

    /**
     * Receives notifications when applications are added/removed.
     */
    private class CloseSystemDialogsIntentReceiver extends BroadcastReceiver {
	@Override
	public void onReceive(Context context, Intent intent) {
	    closeSystemDialogs();
	    String reason = intent.getStringExtra("reason");
	    if (!"homekey".equals(reason)) {
		boolean animate = true;
		if (mPaused || "lock".equals(reason)) {
		    animate = false;
		}
		closeAllApps(animate);
	    }
	}
    }

    /**
     * Receives notifications whenever the appwidgets are reset.
     */
    private class AppWidgetResetObserver extends ContentObserver {
	public AppWidgetResetObserver() {
	    super(new Handler());
	}

	@Override
	public void onChange(boolean selfChange) {
	    onAppWidgetReset();
	}
    }

    /**
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public int getCurrentWorkspaceScreen() {
	if (mWorkspace != null) {
	    return mWorkspace.getCurrentScreen();
	} else {
	    return SCREEN_COUNT / 2;
	}
    }

    /**
     * Refreshes the shortcuts shown on the workspace.
     * 
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void startBinding() {
	final Workspace workspace = mWorkspace;
	int count = workspace.getChildCount();
	for (int i = 0; i < count; i++) {
	    // Use removeAllViewsInLayout() to avoid an extra requestLayout()
	    // and invalidate().
	    ((ViewGroup) workspace.getChildAt(i)).removeAllViewsInLayout();
	}

	if (DEBUG_USER_INTERFACE) {
	    android.widget.Button finishButton = new android.widget.Button(this);
	    finishButton.setText("Finish");
	    workspace.addInScreen(finishButton, 1, 0, 0, 1, 1);

	    finishButton
		    .setOnClickListener(new android.widget.Button.OnClickListener() {
			public void onClick(View v) {
			    finish();
			}
		    });
	}
    }

    /**
     * Bind the items start-end from the list.
     * 
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end) {

	final Workspace workspace = mWorkspace;

	for (int i = start; i < end; i++) {
	    final ItemInfo item = shortcuts.get(i);
	    mDesktopItems.add(item);
	    switch (item.itemType) {
	    case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
	    case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
		final View shortcut = createShortcut((ShortcutInfo) item);
		workspace.addInScreen(shortcut, item.screen, item.cellX,
			item.cellY, 1, 1, false);
		break;
	    case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
		final FolderIcon newFolder = FolderIcon.fromXml(
			R.layout.folder_icon, this, (ViewGroup) workspace
				.getChildAt(workspace.getCurrentScreen()),
			(UserFolderInfo) item);
		workspace.addInScreen(newFolder, item.screen, item.cellX,
			item.cellY, 1, 1, false);
		break;
	    case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
		final FolderIcon newLiveFolder = LiveFolderIcon.fromXml(
			R.layout.live_folder_icon, this, (ViewGroup) workspace
				.getChildAt(workspace.getCurrentScreen()),
			(LiveFolderInfo) item);
		workspace.addInScreen(newLiveFolder, item.screen, item.cellX,
			item.cellY, 1, 1, false);
		break;
	    }
	}

	workspace.requestLayout();
    }

    /**
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void bindFolders(HashMap<Long, FolderInfo> folders) {
	mFolders.clear();
	mFolders.putAll(folders);
    }

    /**
     * Add the views for a widget to the workspace.
     * 
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void bindAppWidget(LauncherAppWidgetInfo item) {
	final long start = DEBUG_WIDGETS ? SystemClock.uptimeMillis() : 0;
	if (DEBUG_WIDGETS) {
	    Log.d(TAG, "bindAppWidget: " + item);
	}
	final Workspace workspace = mWorkspace;

	final int appWidgetId = item.appWidgetId;
	final AppWidgetProviderInfo appWidgetInfo = mAppWidgetManager
		.getAppWidgetInfo(appWidgetId);
	if (DEBUG_WIDGETS) {
	    Log.d(TAG, "bindAppWidget: id=" + item.appWidgetId
		    + " belongs to component " + appWidgetInfo.provider);
	}

	item.hostView = mAppWidgetHost.createView(this, appWidgetId,
		appWidgetInfo);

	item.hostView.setAppWidget(appWidgetId, appWidgetInfo);
	item.hostView.setTag(item);

	workspace.addInScreen(item.hostView, item.screen, item.cellX,
		item.cellY, item.spanX, item.spanY, false);

	workspace.requestLayout();

	mDesktopItems.add(item);

	if (DEBUG_WIDGETS) {
	    Log.d(TAG, "bound widget id=" + item.appWidgetId + " in "
		    + (SystemClock.uptimeMillis() - start) + "ms");
	}
    }

    /**
     * Callback saying that there aren't any more items to bind.
     * 
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void finishBindingItems() {
	if (mSavedState != null) {
	    if (!mWorkspace.hasFocus()) {
		mWorkspace.getChildAt(mWorkspace.getCurrentScreen())
			.requestFocus();
	    }

	    final long[] userFolders = mSavedState
		    .getLongArray(RUNTIME_STATE_USER_FOLDERS);
	    if (userFolders != null) {
		for (long folderId : userFolders) {
		    final FolderInfo info = mFolders.get(folderId);
		    if (info != null) {
			openFolder(info);
		    }
		}
		final Folder openFolder = mWorkspace.getOpenFolder();
		if (openFolder != null) {
		    openFolder.requestFocus();
		}
	    }

	    mSavedState = null;
	}

	if (mSavedInstanceState != null) {
	    super.onRestoreInstanceState(mSavedInstanceState);
	    mSavedInstanceState = null;
	}

	mWorkspaceLoading = false;
    }

    /**
     * Add the icons for all apps.
     * 
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void bindAllApplications(ArrayList<ApplicationInfo> apps) {
	mAllAppsGrid.setApps(apps);
    }

    /**
     * A package was installed.
     * 
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void bindAppsAdded(ArrayList<ApplicationInfo> apps) {
	removeDialog(DIALOG_CREATE_SHORTCUT);
	mAllAppsGrid.addApps(apps);
    }

    /**
     * A package was updated.
     * 
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void bindAppsUpdated(ArrayList<ApplicationInfo> apps) {
	removeDialog(DIALOG_CREATE_SHORTCUT);
	mWorkspace.updateShortcuts(apps);
	mAllAppsGrid.updateApps(apps);
    }

    /**
     * A package was uninstalled.
     * 
     * Implementation of the method from LauncherModel.Callbacks.
     */
    public void bindAppsRemoved(ArrayList<ApplicationInfo> apps) {
	removeDialog(DIALOG_CREATE_SHORTCUT);
	mWorkspace.removeItems(apps);
	mAllAppsGrid.removeApps(apps);
    }

    /**
     * Prints out out state for debugging.
     */
    public void dumpState() {
	Log.d(TAG, "BEGIN launcher2 dump state for launcher " + this);
	Log.d(TAG, "mSavedState=" + mSavedState);
	Log.d(TAG, "mWorkspaceLoading=" + mWorkspaceLoading);
	Log.d(TAG, "mRestoring=" + mRestoring);
	Log.d(TAG, "mWaitingForResult=" + mWaitingForResult);
	Log.d(TAG, "mSavedInstanceState=" + mSavedInstanceState);
	Log.d(TAG, "mDesktopItems.size=" + mDesktopItems.size());
	Log.d(TAG, "mFolders.size=" + mFolders.size());
	mModel.dumpState();
	mAllAppsGrid.dumpState();
	Log.d(TAG, "END launcher2 dump state");
    }

    // hmg25 add for dock {
    View CreateDockShortcut(ShortcutInfo shortcutInfo) {
	Context context = getApplicationContext();
	ImageView imageView = new ImageView(context);
	imageView.setImageBitmap(shortcutInfo.mIcon);
	imageView.setOnClickListener(this);
	imageView.setFocusable(true);
	imageView.setTag(shortcutInfo);
	imageView.setMinimumWidth(100);
	return imageView;
    }
    // hmg25 add for dock }
}
